Calhoun Lake Dam Reservoir Report

Last Updated: December 5, 2025

Calhoun Lake Dam is a private structure located in Panola, Texas, built in 1973 for recreational purposes on TR-Murvaul Creek.


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Summary

Standing at a height of 21 feet with a length of 430 feet, it holds a storage capacity of 85 acre-feet. Despite its age, the dam's hazard potential is deemed not available and its condition remains unrated. The dam does not have a spillway and is supported by a buttress core type on an unlisted/unknown foundation.

Although the dam has not been rated for its condition, its risk assessment is classified as high, indicating a potential for significant consequences in case of failure. It is important for water resource and climate enthusiasts to stay informed about the safety and maintenance of such structures, as they play a crucial role in managing water resources and providing recreational opportunities. With no designated emergency action plan or risk management measures listed, it is essential for owners and relevant authorities to prioritize the safety and upkeep of Calhoun Lake Dam to prevent any potential risks to the surrounding environment and community.

Year Completed

1973

Dam Length

430

Dam Height

21

River Or Stream

TR-MURVAUL CREEK

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

21

Nid Storage

85

Structural Height

21

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

21
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.